Cockpit smells of fumes
10-23-2018, 11:05 AM
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My Ride: Bmw 5Series 525D Msport Touring
Cockpit smells of fumes
After some research I’ve found there could be a possible my manifold has cracked guessing it’s cast..
after reading many different sites on line it states this is common? Any ideas/views on this? Also what manifold is best to use for replacement? I’ve had a look and am guessing the whole head needs to be removed to access the manifold seeing my mate do a turbo on one years ago. Cheers in andvance
after reading many different sites on line it states this is common? Any ideas/views on this? Also what manifold is best to use for replacement? I’ve had a look and am guessing the whole head needs to be removed to access the manifold seeing my mate do a turbo on one years ago. Cheers in andvance
10-24-2018, 07:41 AM
#2
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I think the Diesel is well known for cracking manifolds. Not sure about Petrols.
My own (E61 525d) had same problem. I noticed it before I bought it - and negotiated a reduction in price as a result.
In my case it was the stock thin stainless doubled walled (none cast) manifold that cracked.
FWIW I replaced it with a heavy wall cast manifold (bought of ebay) - as a temporary measure.
(the casting was a bit rough - not as nice as the BMW item - so, I took a bit of time "porting" it with a die grinder because I'm sad that way)
It was quite a job to fit it - mainly 'cos it's hard to see and reach all the bolts... This fixed the burned diesel smell (at tick-over) in the cabin
It also made a small but noticeable reduction in turbo threshold (i.e. with crack boost arrived about 1400rpm, without crack about 1100rpm - which is better)
The cast manifold was about £100 (uk dollars ;-) delivered.
So far it's worked well enough.
My own (E61 525d) had same problem. I noticed it before I bought it - and negotiated a reduction in price as a result.
In my case it was the stock thin stainless doubled walled (none cast) manifold that cracked.
FWIW I replaced it with a heavy wall cast manifold (bought of ebay) - as a temporary measure.
(the casting was a bit rough - not as nice as the BMW item - so, I took a bit of time "porting" it with a die grinder because I'm sad that way)
It was quite a job to fit it - mainly 'cos it's hard to see and reach all the bolts... This fixed the burned diesel smell (at tick-over) in the cabin
It also made a small but noticeable reduction in turbo threshold (i.e. with crack boost arrived about 1400rpm, without crack about 1100rpm - which is better)
The cast manifold was about £100 (uk dollars ;-) delivered.
So far it's worked well enough.
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